You won't have confidence that your visitors see the content you serve as you intend because it can be modified in transit. Your visitors will be broadcasting at least the exact address of the pages they read on your blog, and are vulnerable to anything that gets injected into your traffic in transit (e.g. malicious script).
Every website should use HTTPS. It's the right thing to do. It's not hard to do these days.
Every website should use HTTPS. It's the right thing to do. It's not hard to do these days.